July 10 (Bloomberg) -- Russian President Dmitry Medvedev illustrated his call for a supranational currency to replace the dollar by pulling from his pocket a sample coin of a “united future world currency.”

“Here it is,” Medvedev told reporters today in L’Aquila, Italy, after a summit of the Group of Eight nations. “You can see it and touch it.”

The coin ( untitled picture ), which bears the words “unity in diversity,” was minted in Belgium and presented to the heads of G-8 delegations, Medvedev said.

The question of a supranational currency “concerns everyone now, even the mints,” Medvedev said. The test coin “means they’re getting ready. I think it’s a good sign that we understand how interdependent we are.”

Medvedev has repeatedly called for creating a mix of regional reserve currencies as part of the drive to address the global financial crisis, while questioning the U.S. dollar’s future as a global reserve currency. Russia’s proposals for the G-20 meeting in London in April included the creation of a supranational currency.